The Russian revolution of October 1917, born of the devastation of the Great War, exerted its influence around the globe. Its massive consequences shaped the Twentieth Century and are still with us. Taking 1917 as a point of departure, this book focus on the consequences of imperial and state collapse after 1917 in spatial and chronological dialogue. The contributors examine how profound institutional change created narratives and representations of national memories. They explore the nationalist movements that shaped the new countries and bring to life the communist activists who helped to transform the old world as a tragedy of terrible dimensions unfolded.